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| author | Gerd Hoffmann <kraxel@redhat.com> | 2016-04-01 10:27:20 +0200 |
|---|---|---|
| committer | Gerd Hoffmann <kraxel@redhat.com> | 2016-04-11 12:32:01 +0200 |
| commit | ca58b45fbee05ef7ed938abc5308548866335937 (patch) | |
| tree | 0ec21105a310f00c14386d00b0434fd17fa25a0a /ui | |
| parent | 9628af036fade986dcc94f4484bc75c6b1a06d84 (diff) | |
| download | qemu-ca58b45fbee05ef7ed938abc5308548866335937.tar.gz qemu-ca58b45fbee05ef7ed938abc5308548866335937.tar.bz2 qemu-ca58b45fbee05ef7ed938abc5308548866335937.zip | |
ui/virtio-gpu: add and use qemu_create_displaysurface_pixman
Add a the new qemu_create_displaysurface_pixman function, to create
a DisplaySurface backed by an existing pixman image. In that case
there is no need to create a new pixman image pointing to the same
backing storage. We can just use the existing image directly.
This does not only simplify things a bit, but most importantly it
gets the reference counting right, so the backing storage for the
pixman image wouldn't be released underneath us.
Use new function in virtio-gpu, where using it actually fixes
use-after-free crashes.
Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1459499240-742-1-git-send-email-kraxel@redhat.com
Diffstat (limited to 'ui')
| -rw-r--r-- | ui/console.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ui/console.c b/ui/console.c index 1fd4ea4d2e..bf385790b5 100644 --- a/ui/console.c +++ b/ui/console.c @@ -1292,6 +1292,17 @@ DisplaySurface *qemu_create_displaysurface_from(int width, int height, return surface; } +DisplaySurface *qemu_create_displaysurface_pixman(pixman_image_t *image) +{ + DisplaySurface *surface = g_new0(DisplaySurface, 1); + + trace_displaysurface_create_pixman(surface); + surface->format = pixman_image_get_format(image); + surface->image = pixman_image_ref(image); + + return surface; +} + static void qemu_unmap_displaysurface_guestmem(pixman_image_t *image, void *unused) { |